The gmp manual (https://gmplib.org/manual/Custom-Allocation.html) states
> GMP may use allocated blocks to hold pointers to other allocated
blocks. This will limit the assumptions a conservative garbage
collection scheme can make.
Thus we can't use ecl_alloc_atomic. We could just use ecl_alloc
instead, however our implementation is already structured in such a
way that it is sufficient to use ecl_alloc_uncollectable. The reason
for that is that currently all bignums except those in the bignum
registers in the thread local environment are allocated as compact
objects so that we only need to call mpz_clear for the few non-compact
objects in the bignum registers.
See also commits 7b536161 and bd48b859.
Fixes#485.
Previously: unconditionally use the size from ECL_OPT_C_STACK_SIZE if
it is larger than the OS provided value and if possible resize the
stack at runtime.
Now: Use ECL_OPT_C_STACK_SIZE if provided. Otherwise, use a) the OS
provided value if we can resize the stack at runtime (for Unix) or b)
the new build option ECL_DEFAULT_C_STACK_SIZE (1 MB) if we can set the
stack size at link time (for Windows).
This is a canary which errors when code needs to be adjusted. When
appropriate definitions are added the error condition should be
changed accordingly.
Because that needs the DbgHelp library, an additional make
option has been defined for users, who don't want to link to this
library. Some msvc Makefile cleanup has also been done.
- unicode name tables are always compiled in when we have unicode support
- thread local variables support is removed
- profile and rt contribs are deprecated
because windows using utf16 internally, by using 16bit unicode chararcter,
there is no need to convert ecl_character to wchar_t in embedding
environment.
It didn't work for some cases and wasn't documented, so I'm removing
it. Freshly written tests are left in tests for someone, who would
like to reimplement them.
Old MSVC apparently things, that char = unsigned char. Add explicit
prefixes to typedefs.
This is backward-compatibility fix, because this version of msvc doesn't
support some c99 types.
Reported and fixed by Jón Hallur Haraldsson.
* unixint.d: capture exceptions caused by page guards.
* unixint.d: to interrupt a Windows thread, set up a page guard onto the
ECL environment and in addition queue an APC call that accesses the
environment to trigger that exception.
* stacks.h: CL_CATCH_ALL uses _try/_except to enforce ECL's exception
handler. Without it, Windows behaves randomly and sometimes uses the
default handler and sometimes it simply aborts.
* threads.d: we use ordinary handlers to identify threads.
* time.d: SLEEP now uses Windows' SleepEx, leaving the thread in an
alertable state -- that is, it can be interrupted.
* top.lsp: fixed and improved the code that handles console interrupts,
by first using ordinary conditions and then using an interactive
query function to decide which process to interrupt.
